Guides are another convenient way to keep things orderly.
Even more visible than the grid lines are the guides: vertical or horizontal lines that you can place on a page. You drag them from a ruler, and by default they appear blue, as in the illustration. We'll show you how to add guides in the practice session coming up.
Guides help you organize your diagrams according to their content. If you know that your flowchart shows three processes, for example, you can evenly space three vertical guides on the page. Then you can position the shapes running down each one. (In case you're wondering, guides don't show up on printed diagrams. They're your secret.)
Tip Guides are also handy to mark off the margins of the page as well.